Brake-shoe



(No Model.) 2 Sheets-Sheet 1-,

- G. T. 'SGHOEN.

BRAKE SHOE.

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(No Model.)

O.T.SGHOEN. BRAKE SHOE.

No. 513,656. Patented Jan. 30, 1894.

UNITED STATES PATENT OFFICE.

CHARLES T. SCI-IOEN, or AL EGHENY, PENiv sYLVANIA.

V BRAKE-SHOE.

SPECIFICATION forming partofLetters Patent No. 513,656, dated January 0, 1894.

' Application filed October 28,1893; .Serial No. 489,402. (No model.)

To all whom it may concern:

Be it known that I, CHARLES T. SOHOEN, a citizen of the UnitedStates, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Brake-ShoesQof which the following is a full, clear, and exact description. i

The brake-shoe illustrated in Figs. 1, 2, 3,4 and 5 of the drawings of this case is the same form of brake-shoe as that shown in my application forLetters Patent, Serial No.481,97 9, filed July 31, 1893, and the remaining figures of the drawings show the same broad invention applied to different forms of brake-shoes which are now in common use.

- In my Letters Patent No. 481,973, granted September 6, 1892, I have set forth a brakeshoe having the clip embedded therein, and

in the companion patent No. 484,866, granted- October 2, 1892, I have set forth the method of and 'apparatus for manufacturing such shoe. In my application above referred to I have set forth one method of makingthe brake-shoes of this case, and in an application of even date herewith, entitled brake shoes and method of making same, I have set forth a modified form of the inventions of Patent No. 481,973 and of this case.

The invention, therefore, in this case, consists, first, of a brake shoe as an articlelof manufacture, having its clip inserted into and extending through the shoe from back to face; second, of a brake shoe having its end-lugs similarly inserted; and, third, of a brake shoe having inserted clips or inserted 'clips and lugs, either or both, as hereinafter claimed, which extend through from the back and appear in and form part of the wearing face of the shoe.

Inthe accompanying drawings illustrating my invention, in the several figures of which like parts are similarly designated, Figure 11 is a top plan view. Fig. 2 is a half-section and side elevation. Fig. 3 is a transverse section taken in the plane of line 3-3 of Figs. 1 and 2; and Fig. 4 is atransverse section taken in the plane of line 4.4 ofFigs. l and 2. Fig. 5 is a perspective View of the clip shown in Figs. 1, 2 and .3. Fig. dis a side elevation of the clip detached. Fig. 7 is a cross-section similarto Fig. 3, showing a modification of the shank of the clip. Fig. 8 is a view similar toFig. 2, showing the inserted end-lugs. Fig. 9 is a cross section taken in the plane of type of brake-shoe'. I taken in the plane of line 1212, and Fig.

13 is a cross-section taken in the plane of line 13, of Figs. and 11.

Fig. 14 is a side elevation ofthe' clip of this Collins shoe detached. Fig. 15 is a plan view, and Fig. 16, a half-sectional elevation, of what is known as the hook-head shoe, usedto some extent in the western portion of the United States. Fig. 17 is a cross-section taken in the plane of line 17, and Fig; 18 is across-section taken in the plane of line 18, of Figs. 15 and 16; and Fig. 19 is a perspective view of the clip of this form of shoe detached. Fig. 20 is a plan view, and Fig. 21 a longitudinal section, of a type of shoe employed to some extenton the Philadelphia and Reading and the Jersey Central railroads. Fig. 22 is a cross-section taken in the plane of line 22, and Fig. 23 is a crosssection taken in the plane of line 23, of Figs. 20 and 21. Fig. 24 is a perspective view of the clip. shown in Figs. 20, 21 and 23; and Fig. 25 is a perspective view of the end-lug shown in Figs. 20, 21 andv 22.

Following the specification of the application, Serial No..481,97 9, hereinbefore referred to, and referring now to Figs. 1, 2, 3, 4, and 5, a is the shoe, which maybe of any approved construction and produced in any approved-mannerJ b is the clip, which iscast or otherwise produced, and is provided with the transverse hole 0 for the passage of the key or wedge for securing the shoein the brake-shoe head, and also is provided with the shank d, by which the said clip and shoe are united, as will now appear. The shank d is of substantially the length of the thickness of the opening may be made in the shoe prior to the application of the clip, to receive such shank, and in either case the'shoe, with the applied clip, is allowed to shrink about the said clip to perfect the union of the two. To further perfect such union the shoe may be pressed or compressed about the clip, and the shank of the clip maybe provided with notches, corrugations or grooves e, as shown in Fig. 3, which form anchorages for the metal of the shoe as such shoe subsides, shrinks or is pressed about the clip.

My present experience is that the preferred way of inserting the clip is to use a cold castmetal clip asa punch to make a hole for itself in the hot shoe simultaneously with its insertion therein and union therewith, thereby avoiding spreading of the metal of the shoe and providing for the perfecting of the union of the clip and shoe by the shrinking of the shoe about the clip as the shoe cools, but while this is the preferred method and forms the subject of the aforesaid application, still I claim the shoe having the inserted clip by whatever method produced.

In the manner above described, a very firm and expeditious union of the shoe and its clip is efiected.

In addition to my invention providing a very expeditious and firm union of the shoe and clip, it is to be noted that the metal of the shank of the clip extends into and forms part of the wearing surface of the shoe, and hence my invention provides, also, a brakeshoe of the composite variety now largely in favorable use, the shoe itself beingof wrought metal and the clip of east-metal.

In Fig. 6, I have shown the clip having the sides of its shank d beveled to facilitate its punching action, and in Fig. 7, I have shown the shank dovetailed instead of grooved, corrugated or notched.

In Figs. 1,2 and 4 I have shown the end-lugs f as made integral with the shoe in accordance with Patents Nos. 481,973 and 484,866, while in Figs. 8 and 9, I have shown these lugs as separate pieces f, which are inserted in the shoe while the shoe is hot and before or after it is bent to shape, and having their ends appearing in the surface of the wearing face of the shoe. These inserted end-lugs f may have their sides corrugated, notched, grooved, dovetailed, or otherwise formed, in order to aid their union with the shoe.

By the use of the inserted clips and end- I lugs made as castings or of a difierent metal from the shoe proper, and having their ends appearing in the wearing face of the shoe, the shoe is rendered, in effect, a composite 6o shoe with all the well-known advantages that appertain to that class of brake-shoes.

The clip 12', shown in Figs. 10 to 14, inclusive, extends longitudinally of the shoe and is made with the corrugated, notched, grooved, or other shaped shanks d to be forced into and through the shoe to efiect the union of the two. In this form of clip a transverse hole 0' is used for the reception of the pin or key that is employed to connect the brakeshoe with the brakeshoe head.

In Figs. 15 to 19, the hook-head clip consists of two pieces, b b whose shanks d are notched, corrugated, grooved or otherwise constructed, and adapted to be driven into and through the metal of the shoe and to be anchored therein to effect the union of the clip and the shoe, as in the other forms herein described.

In the brake-shoe shown in Figs. 20 to 25, inclusive, the clip I) is provided with a transverse hole 0 to receive a pin by which the clip and the brake-shoe head are united; and said shoe is also provided with the pointed end-lug f for further insuring the connection of the shoe in its head. The clip I) is made with the shank d notched, grooved, corrugated, or otherwise shaped,and adapted to be driven into and through the brake-shoe to effect the union of the two; so also, the end-lug f is provided with notched, grooved, corrugated, or other shaped sides, and is driven into and through the brake-shoe to unite the two, as in the other forms herein described. In all these cases, it will be observed that the shanks of the clips and the end-lugs themselves appear in the wearing faces of the shoes.

I have selected these forms of brake-shoes as being those largely in common use, but I do not wish to be understood as thereby limiting my invention to the forms of clips and end-1ugs shown and described, since my invention consists not in the form but in a brake-shoe having the clips or devices whereby it is assembled in its brake -shoe head united therewith by being forced into and through the metal of the shoe.

In practicing myinvention, the shoe a may be made of wrought metal, such as iron or soft steel, and the clips and end-lugs may be castings, of iron or steel, or other suitable metal.

What I claim is- 1. The combination with a brake shoe, of a clip having a shank inserted into and through the said shoe, substantially as described.

2. The combination with the brake shoe, of a clip having a shank driven into and through said shoe and provided with notches, corrugations or grooves into which the metal of the shoe subsides, shrinks or is forced, whereby the union of the shoe and the clip is effected, substantially as described.

3. As an improved article of manufacture, a brake shoe having the clip or device by which it is assembled in the brake shoe head, provided with a suitable number of shanks which are forced into and through the shoe, substantially as described.

4. A brake shoe having the clip or device by which it is assembled in the brake shoe head, provided with a suitable number of shanks driven into and through the shoe and appearing in and forming part of the wear- IIO ing surface of the shoe, substantially as dethrough the same and appearing in and formscribed. ing part of the wearing face of the shoe, sub- 5. Abrake shoe having the clip and the stantially as described. end-lugs by which the shoe is assembled in In testimony whereof I have hereunto set 5 flfie brake shoe head forced into and through my hand this 27th day of October, A. D. 1893.

t e said shoe and appearing in and forming part of the Wearing face of the said'shoe, sub- CHARLES SCHOEN' stantially as described. Witnesses:

6. A brake shoe having inserted end-lugs G. WHITNEY WOOD, [0 extending from the back of the shoe entirely J. C. GEOFF. 

